//URL工具


var U = new function(){
	
	this.urlObj = null;
	
	this.getValue = function(key){
		if(this.urlObj == null){
			uri = window.location.href;
			var query = uri.substring(uri.indexOf("?") + 1, uri.length);
			this.urlObj = dojo.queryToObject(query);
		}
		return this.urlObj[key];
	};
};